Produced in association with the British luxury car maker, the new Vertu for Bentley smartphone costs an eye-watering 12,500 euros ($18,000) and is now available for order.

Based on the Vertu's existing Signature Touch phone, the limited edition Vertu for Bentley features a 4.7-inch 1080p touchscreen housed in a diamond knurled titanium body.

Further distinguishing the Vertu for Bentley from its siblings is the soft calf leather section finished in the automaker's Newmarket Tan colour and a small Bentley badge below the screen.

The Vertu for Bentley runs Android 4.4.4 operating system and comes pre-installed with Bentley-themed wallpapers, a Bentley clock and a Bentley-fied start-up animation. There's also a Bentley app loaded onto the device, which features articles from the company's magazine, recommended driving routes, dealer info and "exclusive experiences". This comes on top of Vertu's concierge service and events package.

Other features of the smartphone include LTE, NFC, 64GB of storage, a sound system tuned by Bang & Olufsen, a Hasselblad-branded 13-megapixel camera and ring tones from the London Symphony Orchestra.

Just 2000 Vertu for Bentley phones will be sold worldwide and, despite the name, you're not required to own Bentley before buying one. The two British companies plan to collaborate on a further four co-branded phones in the future.

Vertu is an independent luxury smartphone maker, based in England, that was founded by Nokia in 1998. Largely divested by Nokia in 2012, the company has since gone on to make high-end smartphones running Google's Android smartphone operating system.